Up the spring rates or sway bars?
Joined: Aug 2007
Posts: 652
Likes: 1
From: San Deigo
I have an AP2 with KW Clubsports and run Swift 12 KG (672 lbs/in) springs all around with the Saner bar on full soft. Alignment is 1/8 total toe in rear, zero front a tick under -3 camber all around. Square wheel and tire. No aero yet but very soon. This setup works very well.
*** This is setup for track not autox (which would be very different as noted above by Robinson).
I agree completely with Billy:
800 lbs/in is too much for the stock club sport per KW
Leave the springs on you have now.
Put a bar up front, the saner works well, start on full soft
You could go up in rate the 12kg if you have them to try. One change at a time is really the best.
Choosing between higher spring rate up front or running a bigger bar is a preference thing involving $, access to parts, driver feel etc.
If you run a higher spring rate you have it 100% of the time. If you run lower spring rate and a higher rate bar the increased rate from the bar is in effect, for the most, part in turns only. This allows better compliance when not in the turns on the track and also on the street. It is variable depending on the surface and by that I mean; the bar will yeild no rate increase if both wheels that it controls go over the same thing (irregularities, tall dead bodies etc
) at the same time.
I've found the Swift springs to be excellent in quality and performance. The materials and manufacture of springs makes a big difference.
*** This is setup for track not autox (which would be very different as noted above by Robinson).
I agree completely with Billy:
800 lbs/in is too much for the stock club sport per KW
Leave the springs on you have now.
Put a bar up front, the saner works well, start on full soft
You could go up in rate the 12kg if you have them to try. One change at a time is really the best.
Choosing between higher spring rate up front or running a bigger bar is a preference thing involving $, access to parts, driver feel etc.
If you run a higher spring rate you have it 100% of the time. If you run lower spring rate and a higher rate bar the increased rate from the bar is in effect, for the most, part in turns only. This allows better compliance when not in the turns on the track and also on the street. It is variable depending on the surface and by that I mean; the bar will yeild no rate increase if both wheels that it controls go over the same thing (irregularities, tall dead bodies etc
) at the same time.I've found the Swift springs to be excellent in quality and performance. The materials and manufacture of springs makes a big difference.
Joined: Jul 2010
Posts: 750
Likes: 9
Saner group buy is almost complete just need one (edit) more buyer needed to pay and the order goes in.
From what I understand you need the large front way bar if you are going to continue to run non-staggered track or autox.
The larger front tires mean more grip up front relative to the rear causing oversteer. Going with a large sway bar not only reduces body roll, but, also balances the grip between the front and rear reducing the oversteer.
Joined: Jun 2004
Posts: 473
Likes: 3
From: Charlottesville
The springs will offer more independence on uneven surfaces and less dive under braking.
The bar will give you less inside rear wheel spin when putting the power down. Plus, the bar is easily adjustable, so you can tune it to fit your driving abilities/style.
Given a choice between the one or the other, I'd get an adjustable sway bar.
The bar will give you less inside rear wheel spin when putting the power down. Plus, the bar is easily adjustable, so you can tune it to fit your driving abilities/style.
Given a choice between the one or the other, I'd get an adjustable sway bar.
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